38423544893 has 8 divisors (see below), whose sum is σ = 38721424896. Its totient is φ = 38125734400.

The previous prime is 38423544889. The next prime is 38423544899. The reversal of 38423544893 is 39844532483.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38423544893 - 2² = 38423544889 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38423544899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1926653 + ... + 1946493.

It is an arithmetic number, because the mean of its divisors is an integer number (4840178112).

Almost surely, 2^38423544893 is an apocalyptic number.

It is an amenable number.

38423544893 is a deficient number, since it is larger than the sum of its proper divisors (297880003).

38423544893 is a wasteful number, since it uses less digits than its factorization.

38423544893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34755.

The product of its digits is 9953280, while the sum is 53.

The spelling of 38423544893 in words is "thirty-eight billion, four hundred twenty-three million, five hundred forty-four thousand, eight hundred ninety-three".